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首页>产品中心>日本光明北川式气体检测管>气体快速检测管>120U硫化氢H2S气体检测管120U HYDROGEN SULPHIDE 0.2-6.0ppm

硫化氢H2S气体检测管120U HYDROGEN SULPHIDE 0.2-6.0ppm

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硫化氢H2S气体检测管120U HYDROGEN SULPHIDE 0.2-6.0ppm,豫东电子是一家集研发、生产、销售为一体的各种比长式气体检测管专业生产厂家,主要有气体检测管、一氧化碳检测管、硫化氢检测管、磷化氢检测管、氨气检测管等产品。产品广泛应用于煤炭、冶金、仓储、建材、化工、焦化、环保等行业。

更新时间:2015-08-26

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硫化氢H2S气体检测管120U HYDROGEN SULPHIDE 0.2-6.0ppm

硫化氢H2S气体检测管120U HYDROGEN SULPHIDE 0.2-6.0ppm

Tube 20U

1. PERFORMANCE
1) Measuring range :0.4-6.0 ppm 0.2-3.0 ppm
Number of pump strokes 1/2(50ml) 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.05 ppm(100ml)
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Pale yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with Mercury chloride(II), Hydrogen chloride is produced and PH indicator is discoloured.
H2S+HgCI2→HgS+HCI
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
3.0
2.5
2.0
1.5
1.0
0.5
0.2
100ml
ppm
(White)
DEHUMIDIFIER
􀀀􀀀􀀀􀀀􀀀
􀀀􀀀
120U HYDROGEN SULPHIDE
Substance Interference Coexistence
Whole reagent is changed to Pale red,
Sulphur dioxide but Purplish red stain is indicated H2S
FIG.1 concentration.
Hydrogen selenide Similar stain is produced. Higher readings are given.
Arsine 〃〃
Mercaptans FIG.2 〃〃
Phosphine 〃〃
Hydrogen cyanide Whole reagent is changed to Red. 〃
Coexistence
Interference
0
2
3
1
Sulphur dioxide〔ppm〕�
FIG.1 Influence of Sulphur dioxide
Hydrogen sulphide indicating value 〔ppm〕
1 2 3 4 5
Coexistence
Interference
0
2
3
1
Ethyl mercaptan〔ppm〕�
FIG.2 Influence of Ethyl mercaptan
Hydrogen sulphide indicating value 〔ppm〕
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Reading value

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